Who invented the bearing?

1. In the early linear motion bearing, a row of wooden poles were placed under the pry plate. This technology may be traced back to the construction of the pyramids of Giza, although there is no clear evidence yet. Modern linear motion bearings use a working principle, but sometimes balls are used instead of rollers.

2. The earliest sliding bearing and rolling bearing were made of wood. Ceramics, sapphires or glass are also used, and steel, copper, other metals and plastics (such as nylon, phenolic plastics, Teflon and UHMWPE) are widely used.

3. From heavy wheel shafts and machine tool spindles to precision clock parts, rotary bearings are needed in many occasions. The simplest rotary bearing is a sleeve bearing, which is just a bushing sandwiched between the wheel and the axle. This design was later replaced by rolling bearings, that is, many cylindrical rollers were used instead of the original bushings, and each roller was like an independent wheel. The earliest practical rolling bearing with cage was invented by watchmaker john harrison in 1760 for making H3 chronograph.

4. The early example of ball bearing was found on an ancient Roman ship found in Lake Nano, Italy. This wooden ball bearing is used to support the rotating table top. The ship was built in 40 BC. It is said that Leonardo da Vinci once described a ball bearing with a ratio of 1500. Among all kinds of immature factors of ball bearings, it is very important that the balls will collide and produce extra friction. But putting the ball in a small cage can prevent this phenomenon. /kloc-in the 0/7th century, Galileo first described the "fixed ball" or "cage ball" ball bearing. But after a long time, it was not realized to install bearings on the machine. The first patent on fairway was obtained by Philip Vaughan of Carmarthen in 1794.

5. In 1883, Friedrich Fisher put forward the idea of grinding steel balls with the same size and accurate roundness by using a suitable production machine. This laid the foundation for establishing an independent bearing industry. "Gu? The original combination "stahlkugelfabrik" or "Fischer Aktien-Gesellschaft" later became a trademark, registered on July 29th, 1905. 1962, this trademark was modified and still used today, and became an inseparable part of the company in 1979.

6. 1907, Sven Wingqvist of SKF Ball Bearing Factory designed the earliest modern self-aligning ball bearing.